| Patents for C01F 11 - Compounds of calcium, strontium, or barium (8,019) |
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| 10/22/1991 | US5059407 Liquid carbon dioxide injection in exothermic chemical reactions |
| 10/17/1991 | WO1991015280A1 Method for liquid chromatographic extraction of strontium from acid solutions |
| 10/16/1991 | CN1055346A Liquid carbon dioxide injection in exothermic chemical reactions |
| 10/08/1991 | US5055284 Method for producing amorphous aluminocarbonate compounds |
| 10/08/1991 | CA1290135C Calcium hypochlorite process |
| 10/03/1991 | WO1991014653A1 Liquid carbon dioxide injection in exothermic chemical reactions |
| 10/01/1991 | US5053144 Method for the multistage, waste-free processing of red mud to recover basic materials of chemical industry |
| 09/27/1991 | CA2020502A1 Process for the in-situ production of a sorbent-oxide aerosol used for removing effluents from a gaseous combustion stream |
| 09/27/1991 | CA2020501A1 Process for the production of metal-oxide aerosols for fuel emissions control |
| 09/25/1991 | EP0240507B1 Chlorination of ores containing alkali or alkaline earth values |
| 09/25/1991 | CN1014045B Process for producing strontium carbonate containing neither chlorine nor sodium from zolestin |
| 09/24/1991 | CA1289337C Process for removing gaseous sulfur compounds, such as sulfur dioxide, from the flue gases of a furnace |
| 09/24/1991 | CA1289335C Process and an apparatus for causing the gaseous sulfur compounds offlue gases to react to form solid compounds which can be separated from the flue gases |
| 09/18/1991 | EP0447094A1 Rhombohedral calcium carbonate and accelerated heat-aging process for the production thereof |
| 09/17/1991 | CA2038021A1 Production of calcium chloride |
| 09/11/1991 | EP0445952A1 Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
| 09/11/1991 | EP0445785A1 Plate-like barium sulfate and cosmetic composition |
| 09/11/1991 | CN1054403A Solid thiocarbonates and method of manufacture and use |
| 09/10/1991 | US5047218 Sweetening of sulfur-containing gases using ozone |
| 09/05/1991 | WO1991013028A1 Solid thiocarbonates and methods of manufacture and use |
| 08/27/1991 | US5043017 Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
| 08/21/1991 | EP0442074A1 Method and apparatus for treating absorbent solution slurry containing fly ash |
| 08/14/1991 | CN1013489B Production technology of strontium carbonate |
| 08/13/1991 | US5039327 Pesticides |
| 08/07/1991 | EP0416089A4 Process and apparatus for producing calcium sulfate microfibers |
| 08/07/1991 | CN1013432B Process for barium carbonate |
| 08/06/1991 | US5037639 Methods and compositions for mineralizing calcified tissues |
| 08/06/1991 | US5037477 Heating alkaline slurry of calcium carbonate particle, zinc compound and silica containing substance |
| 07/25/1991 | WO1991009067A3 Dispersion and/or grinding agent for aqueous mineral suspensions with a zeta potential close to zero, aqueous suspensions containing same, and applications |
| 07/25/1991 | DE4001604A1 Waste gas desulphurisation - using recirculated scrubbing liq. regenerated with barium or strontium cpds. |
| 07/10/1991 | CN1052851A Tetrathiocarbonate process |
| 07/04/1991 | DE3943339A1 Desulphurising exhaust gas plaster recovery - uses flotation of output from hydro cyclone to separate discoloured particles and leave bright plaster for recycling |
| 06/26/1991 | EP0434222A1 Ultra high purity metal fluorides and their preparation |
| 06/26/1991 | EP0434019A2 Process for removing sulfur dioxide from flue gases |
| 06/26/1991 | EP0433886A1 Process for the production of an inorganic barium containing composition of solids |
| 06/26/1991 | CN1052465A Process for preparing strontium carbonate by indirect reduction of carbon and desulfurization |
| 06/25/1991 | US5026527 Pressure release valve on receiving vessel controlled by means of signal from flow meter which measures flow rate of reaction products flowing from autoclave to receiver to maintain constant flow rate |
| 06/21/1991 | WO1991009067A2 Dispersion and/or grinding agent for aqueous mineral suspensions with a zeta potential close to zero, aqueous suspensions containing same, and applications |
| 06/21/1991 | CA2070636A1 Dispersing and/or grinding agent for mineral aqueous suspensions with a zeta potential near zero; aqueous suspensions containing said agent and their uses |
| 06/19/1991 | EP0432610A2 Concurrent production of citric acid and alkali citrates |
| 06/12/1991 | EP0431404A2 Formation of titanium, magnesium and zirconium calcium oxides |
| 06/11/1991 | CA1284844C Brine treatment using ethylene/carboxylic acid polymers |
| 06/05/1991 | EP0430920A1 Sulfur dioxide removal from stack gas |
| 06/05/1991 | EP0429707A1 Process for the preparation of basic calcium carbonate, basic calcium carbonate therefrom and its use |
| 05/14/1991 | US5015450 Process for making calcium sulfate alpha-hemihydrate from calcium sulfate dihydrate |
| 05/14/1991 | US5015449 Process for making construction grade calcium sulfate alpha-hemihydrate from moist finely divided gypsum obtained from a power plant flue gas desulfurization |
| 05/07/1991 | CA1283984C Removal of metals from solutions |
| 05/01/1991 | WO1991006509A1 Two-stage process for production of calcium chloride and acetylene |
| 04/24/1991 | CN2075646U Lime pressure hydrating reactor |
| 04/21/1991 | CA2025161A1 Method for selectively recovering lead, zinc and calcium from materials in which they are contained as oxide or salts not soluble in water |
| 04/18/1991 | DE4032249A1 Brightening flue gas gypsum |
| 04/16/1991 | US5007964 Calcium carbonate, calcium carbonate pigment, process for preparing same, coating composition for information recording paper and information recording paper |
| 04/10/1991 | CN1050531A Producing method for strontium carbonate |
| 04/03/1991 | WO1991004944A1 Tetrathiocarbonate process |
| 04/03/1991 | EP0324845B1 Process for desulphurating flue gases from power station boiler furnaces |
| 04/03/1991 | CA2067125A1 Tetrathiocarbonate process |
| 03/27/1991 | EP0419206A1 Vesiculated polymer granules and paper made therefrom |
| 03/19/1991 | US5000791 Process for the preparation of an acid-resistant coating on filler particles |
| 03/13/1991 | EP0416089A1 Process and apparatus for producing calcium sulfate microfibers |
| 03/05/1991 | CA1280970C Scrubber for the desulfurization of flue gases |
| 02/27/1991 | EP0414094A2 Flue gas desulfurization |
| 02/26/1991 | US4996032 Process for removing sulfur dioxide from flue gases |
| 02/13/1991 | CN1049139A Making method of sodium, potassium, barium hydroxide |
| 02/06/1991 | EP0412027A1 Use in the aqueous pigment dispersions of calcium carbonate of a polycarboxylic agent with phosphate or phosphonate groups inhibiting the knockdown effect caused by the introduction of an electrolyte in concentrated form |
| 02/06/1991 | EP0410977A1 Economic recovery and utilization of boiler flue gas pollutants |
| 02/05/1991 | US4990315 Apparatus for desulfurization |
| 02/05/1991 | CA2020584A1 Application of calcium carbonate, to pigmentary aqueous suspensions, of a phosphated or phosphonated polycarboxylic agent inhibiting the knockdown action occurring when introducing in concentrated electrolyte |
| 02/03/1991 | CA2007615A1 Method of improving the quality of large amount of water and the quantity of dissolved oxygen therein, and apparatus for said improvement |
| 01/29/1991 | CA1279546C Calcium hypochlorite disinfectant tablets |
| 01/23/1991 | EP0077331B2 Process and device for manufacturing synthetic anhydrous calcium sulphate and pure hydrofluoric acid |
| 01/22/1991 | CA1279195C Purification process for aqueous solutions of rare earth salts through liquid-liquid extraction |
| 01/16/1991 | EP0408092A1 Flue gas desulfurization process |
| 01/16/1991 | CN1011219B Process for the production of highly concentrated phosphoric acid |
| 01/09/1991 | EP0407180A2 Gas-liquid contacting apparatus |
| 01/09/1991 | EP0406662A1 Process for producing aragonite crystal form calcium carbonate with acicular shape |
| 01/09/1991 | EP0406550A1 Process for the preparation of purified calcium sulfate dihydrate from aqueous solutions |
| 01/08/1991 | US4983374 Methods for forming titanium calcium oxide and zirconium calcium oxide |
| 01/02/1991 | EP0405619A1 A process for treating a chlorine-containing effluent and and apparatus therefor |
| 01/02/1991 | CA1278417C Process for manufacture of metal oxide |
| 12/26/1990 | CN1048080A Mfg. method of material and element having positive temp. coefficient for vehicles under cold-starting |
| 12/25/1990 | US4980395 Process for the preparation of large surface area, finely divided precipitated calcium carbonate and filled polymeric compositions of matter containing said calcium carbonate |
| 12/25/1990 | US4980135 Process for separating barium from water-soluble strontium salts |
| 12/14/1990 | EP0410977A4 Economic recovery and utilization of boiler flue gas pollutants. |
| 12/12/1990 | CN1047632A Process for removal of nox and sox from gas streams using water-soluble, polymeric chelate of polyvalent metal and membrane separation means |
| 12/11/1990 | US4976936 Flue gas desulfurization with oxidation of calcium sulfite in FGD discharges |
| 12/05/1990 | CN1010676B Making pptd. barium sulfate by smelting process |
| 11/24/1990 | WO1990014309A1 Process for the preparation of purified calcium sulphate dihydrate by aqueous means |
| 11/24/1990 | CA2033189A1 Process for preparation of purified calcium sulphate by aqueous medium |
| 11/20/1990 | CA1276410C Textiles having stain resistance |
| 11/14/1990 | EP0397098A2 Process for the removal of NOx and SOx from gas streams using a water-soluble polymeric chelate of a polyvalent metal and membrane separation means |
| 11/08/1990 | CA2016184A1 Process for the removal of no and so from gas streams using a water-soluble, polymeric chelate of a polyvalent metal and membrane separation means |
| 11/06/1990 | CA1275783C Preparation of unagglomerated metal oxide particles with uniform particle size |
| 10/31/1990 | EP0395243A2 Inorganic particles |
| 10/31/1990 | EP0394557A1 Process for the production of low-chloride gypsum products from calcium containing wastes, from flue gas purification plants |
| 10/31/1990 | CN1046442A Roasting technique of activated ionic calcium |
| 10/27/1990 | CA2015454A1 Inorganic particles |
| 10/17/1990 | CN1046144A Production and preparation method of barium hydroxide |
| 10/04/1990 | DE3910130A1 Process for preparing a concentrated solution of sodium sulphite and sulphate originating, in particular, from flue gas desulphurisation |
| 10/03/1990 | EP0294415B1 Process for the in situ recovery of calcium sulfate hemihydrate and/or calcium sulfate (anhydrite) from the scrubber units of a wet flue gas desulphurating plant |
| 10/03/1990 | CN1045766A Use of calcium sulphate to improve fermentation of organic waste |